CPI stress test: The inflation hour has been as wide as Payrolls

Last week we measured how much of a funded account's daily loss limit the first hour after Nonfarm Payrolls has consumed. Tuesday brings the October CPI report, and the same exercise gives a clear answer: over the last six releases, the inflation hour has been at least as demanding as the jobs hour.

Key takeaways

• Gold's first hour after CPI (8:30-9:30 a.m. New York) ranged a median $66.75 over the last six releases, against $61.94 for the last seven payrolls. The widest CPI hour was $106.59 (11 September).
• That is 3.2 times a normal weekday at the same hour ($21.11).
• On one lot of gold, the first hour used more than the whole 5% daily limit of a $100,000 account ($5,000) in four of the six releases.
• EUR/USD: median 35.4 pips (2.7 times a normal weekday), widest 85.0 pips on 14 October.
• Nasdaq 100 (NAS100 CFD): median 243 points (2.6 times a normal weekday), and the last four releases were all above 235 points.

Six releases, Gold first-hour range

12 May: $32.27 · 10 June: $40.91 · 14 July: $74.68 · 12 August: $58.83 · 11 September: $106.59 · 14 October: $75.03
Median: $66.75.

EUR/USD, pips (same dates)

16.3 · 22.3 · 57.8 · 30.6 · 40.2 · 85.0. Median 35.4.

Nasdaq 100, points (same dates)

122.9 · 243.2 · 242.7 · 235.6 · 292.2 · 309.6. Median 243.0.

What the numbers say

First, the CPI hour is not the "smaller" event. Many traders treat payrolls as the big Friday and CPI as a secondary print. In this sample the gold median is slightly higher for CPI, and EUR/USD delivered its widest hour of the series on a CPI day, not on a payrolls day.

Second, the direction of travel matters less than the distance. A trader with a hard daily limit does not need to guess whether the number is hot or cold; the relevant question is whether a position sized for a normal session can absorb an hour that is two to three times wider than usual. On one lot of gold, the median CPI hour equals about $6,675 of movement, more than a $5,000 daily limit on a $100,000 account.

Third, the Nasdaq has been the most consistent of the three. Four consecutive releases moved between 235 and 310 points in the first hour. For index traders the "quiet CPI" has been the exception, not the rule.

One thing is different on Tuesday

The October report is expected to arrive without 12-month rates for most series. The BLS could not collect most October 2025 prices during last year's government shutdown and has said it will not publish 12-month changes for October 2026 where the October 2025 data are missing. Headlines and algorithms may have to react to the monthly change alone. Economic calendars show a consensus of +0.3% for headline and +0.2% for core, while the Cleveland Fed nowcast points to about +0.24% and +0.21%. A release that is harder to read is not a reason to expect a smaller hour.

Last Friday's lesson still applies

The 6 November payrolls report showed that the size of the surprise does not decide the size of the hour: a 100,000-job beat produced one of the calmest gold hours of the year. CPI is no different. Size against the median and the widest hour, not against the last one, and check whether your account restricts trading in the minutes around high-impact releases.

What this means for Tuesday

Six observations are a small base and none of this forecasts the next reaction. The practical checks are the same as before: know your account's news rule, reduce size or stand aside if one wide hour would break the daily limit, and remember that one position copied across several accounts meets each limit at the same moment. We will publish Tuesday's result alongside the series.